Operating assembly of an endoscope



FIG. 1 is a top, front, and left side perspective view of an operating assembly of an endoscope, showing my new design;

FIG. 2 is a rear, bottom, and right side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and

FIG. 8 is a bottom view thereof.

The portions shown in broken lines in FIGS. 1 and 2 have been disclosed for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an operating assembly of an endoscope, as shown and described. 